Sam Green is the pseudonym for Juval Aviv. Juval Aviv is President and CEO of Interfor, Inc., an international corporate intelligence and investigations firm. Since its inception, Interfor's asset investigation services have recovered over $10 billion worldwide for its clients. Before founding Interfor, Juval served as an officer in the Israel Defense Force (Major, retired) leading an elite Commando/Intelligence Unit and was later selected by the Israeli Secret Service (Mossad) to participate in a number of intelligence and special operations in many countries in the late 1960s and 1970s. In 1984, a true account of one mission was published entitled Vengeance which inspired the major motion picture, Munich , directed by Steven Spielberg.